package net.minecraft.command.server;

import com.mojang.authlib.GameProfile;
import java.util.List;
import net.minecraft.command.CommandBase;
import net.minecraft.command.CommandException;
import net.minecraft.command.ICommandSender;
import net.minecraft.command.WrongUsageException;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.BlockPos;

public class CommandPardonPlayer extends CommandBase {
	/**
	 * Gets the name of the command
	 */
	public String getCommandName() {
		return "pardon";
	}

	/**
	 * Return the required permission level for this command.
	 */
	public int getRequiredPermissionLevel() {
		return 3;
	}

	/**
	 * Gets the usage string for the command.
	 */
	public String getCommandUsage(ICommandSender sender) {
		return "commands.unban.usage";
	}

	/**
	 * Returns true if the given command sender is allowed to use this command.
	 */
	public boolean canCommandSenderUseCommand(ICommandSender sender) {
		return MinecraftServer.getServer().getConfigurationManager().getBannedPlayers().isLanServer()
				&& super.canCommandSenderUseCommand(sender);
	}

	/**
	 * Callback when the command is invoked
	 */
	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
		if (args.length == 1 && args[0].length() > 0) {
			MinecraftServer minecraftserver = MinecraftServer.getServer();
			GameProfile gameprofile = minecraftserver.getConfigurationManager().getBannedPlayers()
					.isUsernameBanned(args[0]);

			if (gameprofile == null) {
				throw new CommandException("commands.unban.failed", new Object[] { args[0] });
			} else {
				minecraftserver.getConfigurationManager().getBannedPlayers().removeEntry(gameprofile);
				notifyOperators(sender, this, "commands.unban.success", new Object[] { args[0] });
			}
		} else {
			throw new WrongUsageException("commands.unban.usage", new Object[0]);
		}
	}

	public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
		return args.length == 1
				? getListOfStringsMatchingLastWord(args,
						MinecraftServer.getServer().getConfigurationManager().getBannedPlayers().getKeys())
				: null;
	}
}
